#0 eval() called at [/tmp/include.php:5]
#1 a() called at [/tmp/include.php:17]
#2 include(/tmp/include.php) called at [/tmp/test.php:3]
#0 c() called at [/tmp/include.php:10]
#1 b() called at [/tmp/include.php:6]
#2 a() called at [/tmp/include.php:17]
#3 include(/tmp/include.php) called at [/tmp/test.php:3]

I like the output of debug_print_backtrace() but I sometimes want it as a string.

bortuzar's solution to use output buffering is great, but I'd like to factorize that into a function. Doing that however always results in whatever function name I use appearing at the top of the stack which is redundant.

Below is my noddy (simple) solution. If you don't care for renumbering the call stack, omit the second preg_replace().